I don't know how big your restaurant is 。。。。。。 Upstairs friends recommended ceiling speakers are good, but the installation of wiring and so on have to consider can also be so in the store 4 corners or diagonal to the two corners of each installed on the 5-inch or so of the speakers speakers grade their own to see how the cheapest 4 or two total **** not more than 200 yuan on Taobao or go to the audio market to buy a small digital amplifier is about 150 yuan sound quality is good to put how to put the music do not put some of the so-called background music restaurant. the so-called restaurant background music My experience is that depending on the guests Frequent flyers are students, then play the popular Internet songs 30 40-year-old guests, then play some 8, 90's songs ha ha You can see how it is If you are a music player that would be good hee hee